DIY Lawn Care Program for Indianapolis: Corrected 7-Step Schedule Without Over-Fertilizing

The lawn company's 7-step program contains errors: "high potash" fertilizer is actually high phosphorus (banned in many areas), rates unspecified, "organic" fertilizers at 25-2-5 are synthetic blends. A corrected, science-based program for Indianapolis (Zone 5, cool-season grass).

Corrected Annual Program (Cool-Season: KBG/Fescue/Rye)

Key Corrections From Original

• No high-P fertilizer: 2-24-11 → 20-5-10 (P only if soil test deficient).
• Rates specified: lbs product/1,000 sq ft = lbs N/1,000 sq ft calculable.
• Real organic: Milorganite 6-4-0, not 25-2-5 synthetic blend.
• Summer N minimized: Only if irrigated + showing deficiency.
• Fall focus: Aeration + overseeding + fertility = most impactful window.
• Lime: Only per soil test (not calendar).

Annual N Total: ~3 lb N/1,000 sq ft (appropriate for cool-season).

Indianapolis Specifics

• Soil test (Purdue Extension) every 3 years.
• Crabgrass pre-emergent: forsythia bloom (late March).
• Grub preventive: late June (chlorantraniliprole) if history.
• Leaf mulch mowing in fall = free organic matter.

This program saves money, reduces environmental impact, and produces better turf than 7-step synthetic-heavy schedules. Adjust based on soil test and weather.